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Title: TAMPERPROOF FILM BADGE

Abstract

A persornel dosimeter film badge made of plastic, with provision for a picture of the wearer and an internal slide containing photographic film that is sensitive to various radiations, is described. Four windows made of differing material selectively attenuate alpha, beta, gamma rays, and neutrons so as to distinguish the particular type of radiation the wearer was subjected to. In addition, a lead shield has the identification number of the wearer perforated thereon so as to identify the film after processing. An internal magnetically actuated latch securely locks the slide within the body, and may be withdrawn only upon the external application of two strong magnetic forces in order to insure that the wearer or other curious persons will not accidentally expose the film to visual light.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4247558
Patent Number(s):
2855519
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-13-008356
NSA Number:
NSA-13-008356
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ABSORPTION; ALPHA PARTICLES; BETA PARTICLES; CLOSURES; DOSEMETERS; GAMMA RADIATION; LEAD; LIGHT; MACHINE PARTS; MAGNETIC FIELDS; NEUTRONS; PERSONNEL; PHOTOGRAPHIC FILM; PHOTOGRAPHIC FILM DETECTORS; POLYMERS; RADIATION DETECTORS; RADIATIONS; SEALS; SENSITIVITY; SHIELDING; WINDOWS

Citation Formats

Kocher, L.F. TAMPERPROOF FILM BADGE. United States: N. p., 1958. Web.
Kocher, L.F. TAMPERPROOF FILM BADGE. United States.
Kocher, L.F. Wed . "TAMPERPROOF FILM BADGE". United States.
@article{osti_4247558,
title = {TAMPERPROOF FILM BADGE},
author = {Kocher, L.F.},
abstractNote = {A persornel dosimeter film badge made of plastic, with provision for a picture of the wearer and an internal slide containing photographic film that is sensitive to various radiations, is described. Four windows made of differing material selectively attenuate alpha, beta, gamma rays, and neutrons so as to distinguish the particular type of radiation the wearer was subjected to. In addition, a lead shield has the identification number of the wearer perforated thereon so as to identify the film after processing. An internal magnetically actuated latch securely locks the slide within the body, and may be withdrawn only upon the external application of two strong magnetic forces in order to insure that the wearer or other curious persons will not accidentally expose the film to visual light.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {10}
}